CN113532845B - Pressure testing tool for butt welding end valve - Google Patents
Pressure testing tool for butt welding end valve Download PDFInfo
- Publication number
- CN113532845B CN113532845B CN202110832385.8A CN202110832385A CN113532845B CN 113532845 B CN113532845 B CN 113532845B CN 202110832385 A CN202110832385 A CN 202110832385A CN 113532845 B CN113532845 B CN 113532845B
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- extrusion
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- 238000003466 welding Methods 0.000 title claims abstract description 25
- 238000012360 testing method Methods 0.000 title claims abstract description 23
- 238000001125 extrusion Methods 0.000 claims abstract description 44
- 238000007789 sealing Methods 0.000 claims abstract description 44
- 238000002791 soaking Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 abstract description 7
- 230000006378 damage Effects 0.000 abstract description 5
- 230000003068 static effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/003—Machine valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Safety Valves (AREA)
Abstract
The invention relates to the technical field of butt-welding end valves, in particular to a pressure testing tool for a butt-welding end valve. According to the invention, the extrusion force with the groove is reduced, and the two-stage sealing mode is respectively arranged at the groove and the flange, so that the problem that the clamping of the excessive force at the groove often causes damage to the groove is solved, wherein the clamping, extrusion and sealing of the air inlet and the air outlet of the ball valve are often carried out in the pressure test process; according to the invention, through a multiple automatic limiting mode for the ball valve, not only is the clamping force maintained, but also the operation in the clamping process is reduced, so that the problem that the ball valve is always completely locked through the flange and the bolt in the prior art, and much time is consumed when the ball valve is assembled and disassembled in the mode is solved.
Description
Technical Field
The invention relates to the technical field of butt-welding end valves, in particular to a pressure testing tool for a butt-welding end valve.
Background
The ball valve is a valve, the opening and closing piece of which is driven by the valve rod and rotates around the axis of the ball valve. The device can also be used for regulating and controlling fluid, wherein the hard seal V-shaped ball valve has strong shearing force between the V-shaped ball core and the metal valve seat of the hard alloy for surfacing, and is particularly suitable for mediums containing fibers, tiny solid particles and the like. The multi-way ball valve can flexibly control the confluence, the diversion and the flow direction switching of the medium on the pipeline, and simultaneously can close any channel to connect the other two channels.
The closing member of butt welding ball valve is a ball body, and it is a valve which can be opened and closed by means of 90 deg. rotation of ball body around the centre line of valve body. The butt welding modes include socket welding, groove welding and flat welding. The groove welding mode is common, and is a common welding mode.
Before butt welding the ball valve, the ball valve needs to be tested for pressure test, but the following problems often exist in the pressure test process:
1. because a groove is formed in the sleeve pipe of the ball valve in a groove welding mode, the wall of the groove is thin and easy to damage, and the air inlet and the air outlet of the ball valve are clamped, extruded and sealed in the pressure test process, so that the pressure test can be performed, and the groove is damaged due to the fact that the groove is clamped with excessive force;
2. because the pressure testing in-process needs to carry out very big pressure boost to the ball valve in to need carry out fixed centre gripping operation to the ball valve and prevent that it from causing the injury to pressure testing operating personnel when pressure effect, but prior art often locks the ball valve completely through flange and bolt, can consume a lot of time when this kind of mode loading and unloading ball valve, thereby influences the pressure testing efficiency of ball valve.
Disclosure of Invention
The invention aims to provide a pressure test tool for a butt welding end valve, which is realized by adopting the following technical scheme in order to solve the problems in the prior art: the utility model provides a pressure testing frock of butt welding end valve, includes the frame that soaks, fixed unit and extrusion limiting unit are fixed in the location, the frame lower extreme inner wall that soaks on be provided with fixed unit in the location, be provided with the extrusion limiting unit on the both ends inner wall around the frame that soaks.
The positioning and fixing unit comprises a fixed base, a driving motor, a threaded column, a feeding frame, a sliding rod, a fixed clamping frame, an extrusion spring and a sealing mechanism; the fixed base is arranged on the inner wall of the lower end of the soaking frame, clamping grooves are symmetrically formed in the left end and the right end of the fixed base, a driving cavity is formed in the fixed base, a driving motor is arranged on the inner wall of the lower end of the driving cavity, threaded columns are symmetrically arranged at the left end and the right end of the output end of the driving motor, a feeding frame is connected with the threaded columns in a threaded connection mode, the side wall of the feeding frame is connected with the clamping grooves in a sliding mode, sliding rods are inserted in the close ends of the feeding frame in a sliding mode, a fixed clamping frame is arranged at one end, close to the driving motor, of the sliding rods, an extrusion spring is arranged between the feeding frame and the fixed clamping frame, and a sealing mechanism is arranged on the upper side of the close ends of the feeding frame; the ball valve is placed on the fixed clamping frame in a manual or mechanical auxiliary mode, the driving motor drives the threaded column to rotate, so that the feeding frame feeds in the direction of the driving motor in cooperation with the threaded column, the feeding frame drives the fixed clamping frame to be closed inwards through the extrusion spring, the ball valve is fixedly clamped, the driving motor continues to drive the threaded column to rotate after the ball valve is locked through the extrusion limiting unit, the feeding frame compresses the extrusion spring to continue feeding, and then the sealing mechanism seals two pipe orifices of the ball valve.
Sealing mechanism include seal tube, sealing rubber circle, slip ring, extrusion rubber pad and auxiliary spring, the close end of feed frame is provided with the seal tube, the sealing rubber circle is provided with the one end that the seal tube is close to fixed holder, auxiliary ring groove is offered on the inner wall of seal tube, the slip ring is connected with auxiliary ring groove through sliding mode, be provided with auxiliary spring between slip ring and the inner wall of auxiliary ring groove, the slip ring is close to the one end cover of fixed support frame and is equipped with extrusion rubber pad, feed frame feeding drive slip ring stretches into in the ball valve mouth of pipe, ball valve mouth of pipe and slip ring cooperation make its sealedly to extrusion rubber pad to form one-level sealedly, thereby reduce the atress of groove department and prevent the groove damage through extrusion rubber pad and groove contact simultaneously. And the sliding ring extrudes the auxiliary spring, so that the sliding ring is relatively static with the groove, the groove cannot receive excessive extrusion force, and when the sliding ring extrudes the auxiliary spring, the sealing cylinder continues to feed, so that secondary sealing is formed by matching the sealing rubber ring with the flange plate on the wall of the ball valve.
Preferably, a limit baffle is arranged at one end of the sliding rod far away from the driving motor.
Preferably, the thickness of the extruded rubber pad is in a structure of decreasing from large to small in the direction from the feeding frame to the fixed clamping frame. The seal strength is enhanced by this structure.
Preferably, a pressurizing air inlet is arranged at one end of the fixed clamping frame, which is far away from the fixed clamping frame. The external pressurizing equipment is connected with the pressurizing air inlet through a pipeline.
Preferably, the extrusion limiting unit comprises an L-shaped sliding frame, a reset spring, a rotating frame, a rotating pressing frame and a clamping mechanism, wherein auxiliary grooves a are symmetrically formed in inner walls of the front end and the rear end of the soaking frame, sliding frame grooves b are formed in the lower ends of the auxiliary grooves a, the L-shaped sliding frame is connected with the sliding frame grooves b in a sliding mode, the reset spring is arranged between the L-shaped sliding frame and the inner walls of the upper ends of the sliding frame grooves b, the rotating frame is arranged at the upper end of the L-shaped sliding frame located at the rear side, the rotating pressing frame is arranged on two side walls of the rotating frame in a rotating mode, and the clamping mechanism is arranged between the rotating pressing frame and the L-shaped sliding frame located at the front side. After the ball valve is fixedly clamped by the fixed clamping frame, the rotating pressing frame is manually turned over and fed downwards until the rotating pressing frame is combined with the L-shaped sliding frame positioned at the front side through the clamping mechanism, and the reset spring drives the rotating pressing frame to feed downwards so as to limit and fix the ball valve.
Preferably, the extrusion limiting unit further comprises a torsion spring, and the torsion spring is arranged between the rotating press frame and the side wall of the rotating frame. The torsion spring is reset to a vertical state after the rotating press frame and the L-shaped sliding frame are unlocked.
Preferably, the clamping mechanism comprises a limiting rod, a locking clamping block, a locking spring and an unlocking pressing block; the limiting groove is formed in the lower end of the rotating pressing frame, the limiting rod is arranged between two side walls of the limiting groove, the locking clamping block is connected with the limiting rod in a sliding mode, the locking spring is arranged between the locking clamping block and the inner wall of the front end of the limiting groove, the unlocking groove c is formed in the rear end of the L-shaped sliding frame located on the front side, and the unlocking pressing block is connected with the unlocking groove c in a sliding mode. The locking spring pushes the locking clamping block to combine the rotary pressing frame with the L-shaped sliding frame positioned at the front side, and the unlocking pressing block is manually pressed to unlock the rotary pressing frame and the L-shaped sliding frame positioned at the front side.
Preferably, the clamping mechanism further comprises a limiting block, an anti-falling groove is formed in the inner wall of the lower end of the unlocking groove c, the limiting block is arranged at the lower end of the unlocking pressing block, and the limiting block is connected with the anti-falling groove in a sliding mode.
The beneficial effects of the invention are as follows:
1. according to the invention, the extrusion force with the groove is reduced, and the two-stage sealing mode is respectively arranged at the groove and the flange, so that the problem that the clamping of the excessive force at the groove often causes damage to the groove is solved, wherein the clamping, extrusion and sealing of the air inlet and the air outlet of the ball valve are often carried out in the pressure test process; according to the invention, through a multiple automatic limiting mode for the ball valve, not only is the clamping force maintained, but also the operation in the clamping process is reduced, so that the problem that the ball valve is always completely locked through the flange and the bolt in the prior art, and much time is consumed when the ball valve is assembled and disassembled in the mode is solved.
2. According to the invention, the sliding ring is driven to extend into the pipe orifice through the feeding of the feeding frame, the pipe orifice and the sliding ring are matched to extrude the extrusion rubber pad to seal the extrusion rubber pad, so that primary sealing is formed, and meanwhile, the extrusion rubber pad is contacted with the groove, so that the stress at the groove is reduced, and the groove is prevented from being damaged. And the sliding ring extrudes the auxiliary spring, so that the sliding ring is relatively static with the groove, the groove cannot receive excessive extrusion force, and when the sliding ring extrudes the auxiliary spring, the sealing cylinder continues to feed, so that secondary sealing is formed by matching the sealing rubber ring with the flange plate on the wall of the ball valve.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic diagram of the structure of a front cross-sectional view in the present invention.
Fig. 3 is a schematic side cross-sectional view of the present invention.
Fig. 4 is an enlarged view of a portion of the section I of fig. 2 in accordance with the present invention.
Fig. 5 is an enlarged view of a portion ii of fig. 3 in accordance with the present invention.
Fig. 6 is a schematic view of a part of the structure of the sealing mechanism of the present invention.
Fig. 7 is a schematic view of the structure of the ball valve of the present invention.
In the figure: 1. a soaking frame; 2. a positioning and fixing unit; 21. a fixed base; 22. a driving motor; 23. a threaded column; 24. a feed rack; 25. a slide bar; 26. fixing the clamping frame; 27. extruding a spring; 28. a sealing mechanism; 281. a sealing cylinder; 282. sealing the rubber ring; 283. a slip ring; 284. extruding a rubber pad; 285. an auxiliary spring; 3. an extrusion limiting unit; 31. an L-shaped carriage; 32. a return spring; 33. a rotating frame; 34. rotating the pressing frame; 35. a torsion spring; 36. a clamping mechanism; 361. a limit rod; 362. locking the clamping block; 363. a locking spring; 364. unlocking the pressing block; 365. a limiting block; a. an auxiliary groove; b. a carriage groove; c. unlocking groove.
Detailed Description
The invention is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the invention easy to understand.
Referring to fig. 1, a pressure test fixture for butt welding end valves comprises a soaking frame 1, a positioning and fixing unit 2 and an extrusion limiting unit 3, wherein the inner wall of the lower end of the soaking frame 1 is provided with the positioning and fixing unit 2, and the inner walls of the front end and the rear end of the soaking frame 1 are provided with the extrusion limiting unit 3;
referring to fig. 2, the positioning and fixing unit 2 includes a fixing base 21, a driving motor 22, a screw column 23, a feed frame 24, a slide bar 25, a fixing clamping frame 26, a pressing spring 27, and a sealing mechanism 28; the fixed base 21 is arranged on the inner wall of the lower end of the soaking frame 1, clamping grooves are symmetrically formed in the left and right sides of the upper end of the fixed base 21, a driving cavity is formed in the fixed base 21, a driving motor 22 is arranged on the inner wall of the lower end of the driving cavity, threaded columns 23 are symmetrically arranged at the left and right sides of the output end of the driving motor 22, a feeding frame 24 is connected with the threaded columns 23 in a threaded connection mode, the side wall of the feeding frame 24 is connected with the clamping grooves in a sliding mode, a sliding rod 25 is inserted in the close end of the feeding frame 24 in a sliding mode, a fixed clamping frame 26 is arranged at one end, close to the driving motor 22, of the sliding rod 25, an extrusion spring 27 is arranged between the feeding frame 24 and the fixed clamping frame 26, and a sealing mechanism 28 is arranged on the upper side of the close end of the feeding frame 24; the end of the sliding rod 25 far away from the driving motor 22 is provided with a limit baffle. The end of the fixed clamping frame 26 which is far away from the fixed clamping frame is provided with a pressurizing air inlet. The ball valve is placed on the fixed clamping frame 26 in a manual or mechanical auxiliary mode, the driving motor 22 drives the threaded column 23 to rotate, so that the feeding frame 24 is fed to the driving motor 22 in the matching with the threaded column 23, the feeding frame 24 drives the fixed clamping frame 26 to be closed inwards through the extrusion spring 27, the ball valve is fixed and clamped, the driving motor 22 continues to drive the threaded column 23 to rotate after the ball valve is locked through the extrusion limiting unit 3, the feeding frame 24 compresses the extrusion spring 27 to continue feeding, and then the sealing mechanism 28 seals two pipe orifices of the ball valve. The external pressurizing equipment is connected with the pressurizing air inlet through a pipeline.
Referring to fig. 4 and 6, the sealing mechanism 28 includes a sealing cylinder 281, a sealing rubber ring 282, a sliding ring 283, an extrusion rubber pad 284 and an auxiliary spring 285, the sealing cylinder 281 is disposed at the proximal end of the feeding frame 24, the sealing rubber ring 282 is disposed at one end of the sealing cylinder 281 near the fixed clamping frame 26, the auxiliary ring groove is disposed on the inner wall of the inner end of the sealing cylinder 281, the sliding ring 283 is connected with the auxiliary ring groove in a sliding manner, the auxiliary spring 285 is disposed between the sliding ring 283 and the inner wall of the inner end of the auxiliary ring groove, and the extrusion rubber pad 284 is sleeved at one end of the sliding ring 283 near the fixed supporting frame; the feeding frame 24 feeds and drives the sliding ring 283 to extend into the pipe orifice of the ball valve, the pipe orifice of the ball valve and the sliding ring 283 cooperate to extrude the extrusion rubber pad 284 to seal the ball valve, so that primary sealing is formed, and meanwhile, the extrusion rubber pad 284 is contacted with the groove, so that the stress at the groove is reduced, and the groove is prevented from being damaged. And the sliding ring 283 can stop feeding by extruding the auxiliary spring 285, so that the sliding ring 283 is relatively static to the bevel, the bevel cannot receive excessive extrusion force, and when the sliding ring 283 extrudes the auxiliary spring 285, the sealing cylinder 281 continues feeding, so that secondary sealing is formed by matching the sealing rubber ring 282 with a flange plate on the wall of the ball valve. The pressing rubber pad 284 has a thickness that decreases from large to small in the direction from the feed frame 24 to the fixed holding frame 26. The seal strength is enhanced by this structure.
Referring to fig. 3, the extrusion limiting unit 3 includes an L-shaped sliding frame 31, a return spring 32, a rotating frame 33, a rotating pressing frame 34 and a clamping mechanism 36, wherein the inner walls of the front end and the rear end of the soaking frame 1 are symmetrically provided with an auxiliary groove a, the lower end of the auxiliary groove a is provided with a sliding frame groove b, the L-shaped sliding frame 31 is connected with the sliding frame groove b in a sliding manner, the return spring 32 is arranged between the L-shaped sliding frame 31 and the inner wall of the upper end of the sliding frame groove b, the rotating frame 33 is arranged at the upper end of the L-shaped sliding frame 31 at the rear side, the rotating pressing frame 34 is rotatably arranged on the two side walls of the rotating frame 33, and the clamping mechanism 36 is arranged between the rotating pressing frame 34 and the L-shaped sliding frame 31 at the front side. The extrusion limiting unit 3 further comprises a torsion spring 35, and the torsion spring 35 is arranged between the rotating press frame 34 and the side wall of the rotating frame 33. After the ball valve is fixedly clamped by the fixed clamping frame 26, the rotating pressing frame 34 is manually turned over and fed downwards until the rotating pressing frame 34 is combined with the L-shaped sliding frame positioned on the front side through the clamping mechanism 36, and the reset spring 32 drives the rotating pressing frame 34 to feed downwards so as to limit and fix the ball valve. The torsion spring 35 is reset to the vertical state after unlocking the rotating presser 34 and the L-shaped carriage 31 on the front side.
Referring to fig. 5, the locking mechanism 36 includes a limit lever 361, a locking block 362, a locking spring 363, and an unlocking pressing block 364; a limiting groove is formed in the lower end of the rotating pressing frame 34, a limiting rod 361 is arranged between two side walls of the limiting groove, a locking clamping block 362 is connected with the limiting rod 361 in a sliding mode, a locking spring 363 is arranged between the locking clamping block 362 and the inner wall of the front end of the limiting groove, an unlocking groove c is formed in the rear end of the L-shaped sliding frame 31 positioned on the front side, and an unlocking pressing block 364 is connected with the unlocking groove c in a sliding mode. The clamping mechanism 36 further comprises a limiting block 365, an anti-falling groove is formed in the inner wall of the lower end of the unlocking groove c, the limiting block 365 is arranged at the lower end of the unlocking pressing block 364, and the limiting block 365 is connected with the anti-falling groove in a sliding mode. The lock spring 363 urges the lock block 362 to combine the rotating press frame 34 with the L-shaped carriage 31 on the front side, and the unlocking pressing block 364 is manually pressed to unlock the rotating press frame 34 from the L-shaped carriage 31 on the front side.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing embodiments, and that the foregoing embodiments and description are merely illustrative of the principles of this invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, and these changes and modifications fall within the scope of the invention as hereinafter claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a pressure testing frock of butt welding end valve, includes frame (1), location fixed unit (2) and extrusion limiting unit (3) that soaks, its characterized in that: the inner walls of the lower ends of the soaking frames (1) are provided with positioning and fixing units (2), and the inner walls of the front end and the rear end of the soaking frames (1) are provided with extrusion limiting units (3);
the positioning and fixing unit (2) comprises a fixed base (21), a driving motor (22), a threaded column (23), a feeding frame (24), a sliding rod (25), a fixed clamping frame (26), an extrusion spring (27) and a sealing mechanism (28); the fixed base (21) is arranged on the inner wall of the lower end of the soaking frame (1), clamping grooves are symmetrically formed in the left and right sides of the upper end of the fixed base (21), a driving cavity is formed in the fixed base (21), a driving motor (22) is arranged on the inner wall of the lower end of the driving cavity, threaded columns (23) are symmetrically arranged at the left and right sides of the output end of the driving motor (22), a feeding frame (24) is connected with the threaded columns (23) in a threaded connection mode, the side wall of the feeding frame (24) is connected with the clamping grooves, sliding rods (25) are inserted in the similar ends of the feeding frame (24) in a sliding mode, a fixed clamping frame (26) is arranged at one end, close to the driving motor (22), of the sliding rods (25), a pressing spring (27) is arranged between the feeding frame (24) and the fixed clamping frame (26), and a sealing mechanism (28) is arranged at the upper side of the similar ends of the feeding frame (24).
The sealing mechanism (28) comprises a sealing cylinder (281), a sealing rubber ring (282), a sliding ring (283), an extrusion rubber pad (284) and an auxiliary spring (285), wherein the sealing cylinder (281) is arranged at the close end of the feeding frame (24), one end, close to the fixed clamping frame (26), of the sealing cylinder (281) is arranged on the sealing rubber ring (282), the auxiliary ring groove is formed in the inner wall of the inner end of the sealing cylinder (281), the sliding ring (283) is connected with the auxiliary ring groove in a sliding mode, the auxiliary spring (285) is arranged between the sliding ring (283) and the inner wall of the inner end of the auxiliary ring groove, and the extrusion rubber pad (284) is sleeved at one end, close to the fixed supporting frame, of the sliding ring (283);
the extrusion limiting unit (3) comprises an L-shaped sliding frame (31), a return spring (32), a rotating frame (33), a rotating pressing frame (34) and a clamping mechanism (36), wherein auxiliary grooves (a) are symmetrically formed in the inner walls of the front end and the rear end of the soaking frame (1), sliding frame grooves (b) are formed in the lower ends of the auxiliary grooves (a), the L-shaped sliding frame (31) is connected with the sliding frame grooves (b) in a sliding mode, the return spring (32) is arranged between the L-shaped sliding frame (31) and the inner walls of the upper ends of the sliding frame grooves (b), the rotating frame (33) is arranged at the upper end of the L-shaped sliding frame (31) at the rear side, the rotating pressing frame (34) is arranged on the two side walls of the rotating frame (33), and the clamping mechanism (36) is arranged between the rotating pressing frame (34) and the L-shaped sliding frame (31) at the front side.
2. The pressure testing tool for butt-welding valves of claim 1, wherein: one end of the sliding rod (25) far away from the driving motor (22) is provided with a limit baffle.
3. The pressure testing tool for butt-welding valves of claim 1, wherein: the thickness of the extrusion rubber pad (284) is reduced from large to small in the direction from the feeding frame (24) to the fixed clamping frame (26).
4. The pressure testing tool for butt-welding valves of claim 1, wherein: one end of the fixed clamping frame (26) which is far away from the fixed clamping frame is provided with a pressurizing air inlet.
5. The pressure testing tool for butt-welding valves of claim 1, wherein: the extrusion limiting unit (3) further comprises a torsion spring (35), and the torsion spring (35) is arranged between the rotating press frame (34) and the side wall of the rotating frame (33).
6. The pressure testing tool for butt-welding valves of claim 1, wherein: the clamping mechanism (36) comprises a limiting rod (361), a locking clamping block (362), a locking spring (363) and an unlocking pressing block (364); the limiting groove is formed in the lower end of the rotary pressing frame (34), a limiting rod (361) is arranged between two side walls of the limiting groove, a locking clamping block (362) is connected with the limiting rod (361) in a sliding mode, a locking spring (363) is arranged between the locking clamping block (362) and the inner wall of the front end of the limiting groove, an unlocking groove (c) is formed in the rear end of the L-shaped sliding frame (31) located on the front side, and an unlocking pressing block (364) is connected with the unlocking groove (c) in a sliding mode.
7. The pressure testing tool for butt-welding valves of claim 6, wherein: the clamping mechanism (36) further comprises a limiting block (365), an anti-falling groove is formed in the inner wall of the lower end of the unlocking groove (c), the limiting block (365) is arranged at the lower end of the unlocking pressing block (364), and the limiting block (365) is connected with the anti-falling groove in a sliding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110832385.8A CN113532845B (en) | 2021-07-22 | 2021-07-22 | Pressure testing tool for butt welding end valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110832385.8A CN113532845B (en) | 2021-07-22 | 2021-07-22 | Pressure testing tool for butt welding end valve |
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| Publication Number | Publication Date |
|---|---|
| CN113532845A CN113532845A (en) | 2021-10-22 |
| CN113532845B true CN113532845B (en) | 2024-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110832385.8A Active CN113532845B (en) | 2021-07-22 | 2021-07-22 | Pressure testing tool for butt welding end valve |
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| CN (1) | CN113532845B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4587836A (en) * | 1984-10-02 | 1986-05-13 | Crosby Valve & Engineering Company Limited | Test stand for a valve |
| CN106840550A (en) * | 2017-01-09 | 2017-06-13 | 大禹节水集团股份有限公司 | Multifunction ball valve fatigue tester |
| CN207279034U (en) * | 2017-09-15 | 2018-04-27 | 中建八局第二建设有限公司 | A kind of fixing device for concrete pump pipe |
| CN110220353A (en) * | 2019-06-17 | 2019-09-10 | 东营蓓拉锁具有限公司 | A kind of environment-friendly type hutch based on photovoltaic power generation |
| CN210141973U (en) * | 2019-05-24 | 2020-03-13 | 常静 | Clamping device for valve pressure test |
| CN112460064A (en) * | 2020-11-25 | 2021-03-09 | 深圳朴坂科技有限公司 | Sealing device for bladeless turbine pump |
| CN213091166U (en) * | 2020-10-30 | 2021-04-30 | 安徽省屯溪高压阀门有限公司 | Butt welding valve pressure test clamp |
| CN112756781A (en) * | 2020-12-28 | 2021-05-07 | 南京柯策五金工具有限公司 | Method for improving laser welding quality and stability |
| CN215036956U (en) * | 2021-06-11 | 2021-12-07 | 江西远江阀门有限公司 | Assembly aligning device convenient for pneumatic ball valve |
-
2021
- 2021-07-22 CN CN202110832385.8A patent/CN113532845B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4587836A (en) * | 1984-10-02 | 1986-05-13 | Crosby Valve & Engineering Company Limited | Test stand for a valve |
| CN106840550A (en) * | 2017-01-09 | 2017-06-13 | 大禹节水集团股份有限公司 | Multifunction ball valve fatigue tester |
| CN207279034U (en) * | 2017-09-15 | 2018-04-27 | 中建八局第二建设有限公司 | A kind of fixing device for concrete pump pipe |
| CN210141973U (en) * | 2019-05-24 | 2020-03-13 | 常静 | Clamping device for valve pressure test |
| CN110220353A (en) * | 2019-06-17 | 2019-09-10 | 东营蓓拉锁具有限公司 | A kind of environment-friendly type hutch based on photovoltaic power generation |
| JP6721196B1 (en) * | 2019-06-17 | 2020-07-08 | 温州市博邁環保科技有限公司 | Environmentally friendly storage box based on solar power |
| CN213091166U (en) * | 2020-10-30 | 2021-04-30 | 安徽省屯溪高压阀门有限公司 | Butt welding valve pressure test clamp |
| CN112460064A (en) * | 2020-11-25 | 2021-03-09 | 深圳朴坂科技有限公司 | Sealing device for bladeless turbine pump |
| CN112756781A (en) * | 2020-12-28 | 2021-05-07 | 南京柯策五金工具有限公司 | Method for improving laser welding quality and stability |
| CN215036956U (en) * | 2021-06-11 | 2021-12-07 | 江西远江阀门有限公司 | Assembly aligning device convenient for pneumatic ball valve |
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| CN113532845A (en) | 2021-10-22 |
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